Oil-filter installation



June 24, .1930. v, CRAM ET AL I 1,768,511

OIL FILTER INSTALLATION Filed May 19, 1927 gwomtow auomu" Patented June 24, 1930 UNITED STATES PA ENT FOFFICE LEROY v.. 03AM AND CHARLES w. MCKINLEY, or FLINT, MICHIGAN, AssIeNons, Y

,NEsNE ASSIGNMENTS, COMPANY or MICHIGAN To A o SPARK. PLUG GOMPANY,,OF FLINT, MICHIGA1\T,-'.A.-

OIL-FILTER INSTALLATION Application filed May 19, 1927. Serial No. 192,712.

This invention relates to. an improved system of oil circulation and filtering particularly as applied to the oiling systemof internal combustion engines on automotive vehicles. I

Our invention is shown as applied to the conventional internal combustion engine on an automotive vehicle. We make use of what I we term a distributor head nto which the Oll is pumped from the crankcase and from which a portion of the oil passes to the filter while the remainder flows thru a b-y-pass arrangement to troughs over which the throws of the crankshaft swing as they revolve. The ends of the piston rods have fins which dip into the'oil and splash the lubricant onto the moving parts of the engine.

Our novel distributor head has a spring operated valve to allow for the passage of the pumped filter. The spring of the valveis of sufiicient resistance to force a portion of the oil to the filter while allowing the remainder to flow to the pistonrod troughs.

The oil which goes to the filter is returned after filtering to the distributorhead from which it runs to the working parts or into the troughs along with the unfiltered oil pumped from the crankcase.

The invention is disclosed panying drawing'inwhich:

Fig. 1 is a View of so much of an internal combustion engine necessary to illustrate the application of our invention, with parts shown in section for purposes of clear illustration.

Fig. 2 is a transverse section of the structure shown in Fig. 1. V

Fig. 3 is a section on line 3-3 of Fig. 2.

.Fig. 4 is a detail perspective view of the in the accomseat for the spring of the distributor valve- Referring to the numbered parts'on the drawing, 10 indicates an internal combustion engine as a whole, 11 the crankcase, 12 the piston, 13 the piston rods and 14 the throws of the shaft 15.

An oil pump 16 is placed in the crankcase 11 and has a pipe extending to within a short I I I y chamber 27 Wlll passthru the pipe 28 and 1 distance of the bottom thereof which pipe is surrounded by a tube 17 having a stamping oil which is unable to flow to the 181at its lower end and to the stamping there is secured a relativelyfine meshed screen19 surrounded by the relatively heavy screen I 20, the purpose of the latter being to prevent crushing and wearing of the finer-screen due to the pressure of the spring2l'on the stamp ing 18. i

The pump 16 will force the oil shown at 22 from the bottom of the crankcase thru the delivery pipe 23 into a channel 24 inthe distributor head 25. The channel 24 com municates with a passage 26 which delivers the oil into the upper chamber 27 of the distributorhead. The distributor head-has a lower chamber 27 and between the two chambers 27 and 27 there is positioned aflow control device or valve 29 cooperating with seat 30 on a disc or seat 31 integrally united with thecage 46. The flow control device or valve has a headed stem 32 surrounding which is a Suitable coil spring 33 which tends to urge the valve against its seat.

The cage 46 and its disc 31 are seated on a ledge 47 in the distributor head. The cage comprises three prongs 48 having feet 49 and supporting a plate 50 shown in detailin Fig.

4. The plate is centrally apertured at 51 to, receive the stem 32 of the valve-and has three radial splits 52, one edge of-which is bent as shown'at 53,'the purpose of which is to give a swirl to the oil to keep the sediment away from the spring 33, and also to secure a relatively stable and firm interrelation of oil delivery pipes or passageways 34 from which the oil flows into gutters 35 where it drips into troughs 36 over which the throws 14 of the crankshaft 14 swing as they revolve. Each piston rod 13 has at its lower enda fin 37 which dips into the oil in the trough36 and splashes the oil onto the working parts.

The remainder of-the oil delivered to the thru a branch pipe 38 to the oil filter '39.

From the filter the oil is returned thru the pipe 40 to the distributor head 25 and thru a passage 41 in a plu 42 screwed into the dis tributor head. The lower portion of the plug 42 is open as at43 and communicates with a passageway 44 which in turn is in communication with the lower chamber 27 to permit the delivery of the filtered oil to the delivery pipes 34.

A pipe 45 leads from the pipe 28 to the oil gauge. 1

The operation of the device is as follows: The oil will be pumped from the sump of the crankcase thru the outlet pipe 23 into the up-- per chamber 27 of the distributor head. When the oil reaches this chamber it is under pressure and will divide, a portion going to the filter, the remaining portion flowing past the Valve 29 which will be forced from its seat 30 because of the pressure. The spring 33 is under appropriate compression and will allow the oil pressure to extend the valve so that a portion of the oil will then pass thru the valve while the remainder will travel to the oil filter through the pipe 38. The oil flowing past the valve 29 will flow into the lower chamber from which it will be delivered to the gutters 35 through the delivery passages and pipes 34. The portion of the oil passing to the filter 39 will be returned after filtering thru the pipe l0 to the dis-- tributor head 25, thru the plug 4-2, opening 43, and channel 44 to the lower chamber 27 from which it will pass to the working parts ofthe engine thru the delivery pipes 34.

We claim: 7

1. In combination with an automotive vehicle having an internal combustion engine, an oil pump in the oil panel": said engine, an impurity remover outside the engine, a distributor in the engine crankcase, means for delivering oil from the pump to the distributor and impurity remover, means for delivering the oil from the impurity remover to the distributor, and means for permitting theoutflow oi": oil from the distributor to the bearing parts of the engine.

2. In a lubricating system, a source of pressure for the lubricant, a distributor to which the lubricant is delivered and from which it distributed to the parts to be lubricated, a flow control device in said distributor includ ing a headed stem resiliently urged against its seat at all times against the lubricant pressure, and a plate in said distributor adapted to give a swirl to the lubricant.

3. In a lubricating system, a sourceoi' pressure for the lubricant, a distributor to which the lubricant is delivered and from which it is distributed to the parts to be lubricated, a flow control device in said distributor includ ing a valve resiliently held against its seat, and a plate in said distributor having a split edge to give a swirl to the lubricant.

4. In a lubricating system, a source of pressure for the lubricant, a distributor to which the lubricant is delivered and from which it is distributed to the parts to be lubricated, a flow control device in said distributor including a valve resiliently held against its seat, and a plate in said distributor to give a swirl to the lubricant.

5. I11 a lubricating system, a source of pressure for the lubricant, a distributor to which the lubricant is delivered and from which it is distributed to the parts to be lubricated, a flow control memberin said distributor comprising a stemmed valve resiliently urged against its seat, and a plate on said stem having an interrupted edge for giving a swirl to the lubricant.

6. In a flow control device for lubricating systems, a stem having a head, a seat for said head, a spring for resiliently urging said head against its seat and tending to prevent the flow of lubricant, and a plate mounted on said stem between the spring and seat adapted to give a swirl to the lubricant.

7. In an oiling system, an oil filter, a pump for moving the oil, a housed oil distributor head comprising a unit separate from and independent of the filter and pump, a chamber in said head, means for delivering all the oil from the pump to said chamber, and means in said chamber for delivering a portion of the oil to said filter and the remainder to the parts to be lubricated.

8. In an oiling system, an oil filter, a pump for moving the oil, a housed oil distributor head comprising a unit separate from and independent of the filter, a chamber in said head, means for delivering all the oil from the pump to said chamber, a second chamber in said head, means in said chamber for delivering a portion of the oil to said filter and the remainder to the parts to be lubricated through said second chamber, and means for returning the filtered oil to said second chamber.

9. In an oiling system, an oil filter, a pump for moving the oil, a housed oil distributor head comprising a unit separate from and independent of the filter, a chamber in said head, means for delivering all the oil from the pump to said chamber, a second chamber in said head, means in said chamber for delivering a portion of the oil to said filter and the remainder to the parts to be lubricated through said second chamber, and a plurality of oil delivery passageways leading from said chamber,

In testimony whereof we our signatures.

LEROY V. CRAM. CHARLES IV. McKINLEY. 

